they're being buried by the obama administration's economic failures. >> the romney campaign also chimed in on twitter writing agree with joe biden. the middle class has been buried the last four years which is why we need a change in november, #can'tafford4more. >>> later that today in asheville, north carolina vice president biden clarified that the middle class was buried by the policies that romney and ryan supported. see if you're convinced by that recovery. >>> also yesterday, a video was relesioned by the daily caller, featuring then senator barack obama speaking to a group of african-american religious leaders in 2007. they are billing the video as a bombshell labelling it obama's other race speech. the video's publication widely seen as an effort to counter the damage inflicted on romney's candidacy by his hidden video comments about the 47%. in the video released yesterday, then candidate obama was critical of the government's response to hurricane katrina. >> when hurricane andrew struck in florida, people said, look at this devastation. we don't expect you to come up with the